NO. 1976. TREE8I-TREWS: FAMILY TUPAIIDJE—LYON. Yl 



SJcuU and teeiJi. — The skull and teeth of Tupaia liypoclirysa are not 

 fundamental^ different from those of T. g. ferruginea. The skull 

 averages larger as a whole, the rostrum is relatively long and heavy, 

 the distance from the lachrymal notch to tip of premaxillary is equal 

 to distance from notch to posterior edge of external auditory mea- 

 tus; the bullm are smaller than they are in T. g. ferruginea; zygo- 

 matic arch wide and heavy and strongly marked anteriorly for 

 insertion of muscles; the teeth are larger and heavier and the tooth- 

 row as a whole distinctly longer. (Plate 9, fig. 6.) 



Measurements. — Type and a specimen from Mount Salak, Cat. No. 



154599, U.S.N.M. Head and body, , 145 mm.; tail, , 145; 



hmd foot, 48, 49; condylo-basal length, 51.5,51; zygomatic width, 

 2G, 28; width of brain case, 19.5, 21.5; maxillary tooth row, 21, 20.5. 



Remarks. —Y^hxXe Tupaia liypoclirysa is probably the Javan repre- 

 sentative of T. glis ferruginea, yet it is a very distinct species. 

 When first described specimens in alcohol from Sipora, Mentawei 

 Islands, were regarded as being the same species. "While they seem 

 to belong to the same group as T. liypoclirysa, I have identified them 

 with Tupaia clirysogaster from the geographically nearer Pagi Islands, 

 and with which they seem to agree more closely with respect to 

 measurements. Tupaia liypoclirysa has many resemblances to 

 Tupaia longipes and discolor of Borneo and Banka. Tupaia liypo- 

 clirysa is one of the few species of treeshrews whose number of mammse 

 is unknown, and in this particular instance knowledge on that point 

 is of much importance to show probable afFmities. T. clirysogaster 

 of the Mentawei Islands has the mammae 1-1 =2, while in T. longipes 

 and T. discolor they are 3-3 = 6. 



Specimens examined. — Three, the type from "Java" and a second 

 specimen from "Java" and a third from 3,500 feet on Mount Salak, 

 western Java. See table, page 72. 



TUPAIA CHRYSOGASTER Miller. 



1903. Tupaia chrysogaster Miller, Smiths. Misc. Coll., vol. 45, p. 58, November 

 6, 1903. 



Type-locality. — North Pagi Island, off southwest coast of Sumatra. 



Type-specimen. — In United States National Museum, Cat. No. 

 121752, skin and skull of adult female collected on North Pagi Island, 

 November 21, 1902, by Dr. W. L. Abbott; original number, 2078; in 

 good condition. 



Geographic distribution. — North and South Pagi, and Sipora of the 

 Mentawei Islands, off the southwest coast of Sumatra. See No. 16 on 

 map on page 75. 



Diagnosis. — Above, including tail, finely grizzled, blackish and 

 ochraceous rufous; below, clear ochi-aceous rufous; mammas, 1-1=2. 



Color. — Upper parts of head, neck, body, taO, and outerside of legs 

 a fine grizzle of blackish and ochraceous rufous, both colors about in 

 equal proportions; on nose the ochraceous rufous lightens to raw 

 sienna; underside of tail similar to upper but orange ocliraceous 



